Exhibit 4.23

Power of Attorney

I, Bin
LI, a Chinese citizen with Chinese Identification Card No.:                 , and a holder of 55.7% of the entire registered capital in Beijing Yixin Information
Technology Co., Ltd. (Beijing Yixin) as of the date when the Power of Attorney is executed, hereby irrevocably authorize Shanghai Techuang Advertising Co., Ltd. (WFOE) to exercise the following rights relating to all equity
interests held by me now and in the future in Beijing Yixin (My Shareholding) during the term of this Power of Attorney:

WFOE
(or any person designated by WFOE) is hereby authorized to act on behalf of myself as my exclusive agent and attorney with respect to all matters concerning My Shareholding, including without limitation to: 1) attending shareholders meetings
of Beijing Yixin; 2) exercising all the shareholders rights and shareholders voting rights I am entitled to under the laws of China and Beijing Yixin of Association, including but not limited to the sale or transfer or pledge or
disposition of My Shareholding in part or in whole; and 3) designate and appoint on behalf of myself the legal representative, the directors, supervisors, the chief executive officer and other senior management members of Beijing Yixin. Without
written consent by WFOE, I have no right to increase, decrease, transfer, pledge, or by any other manner to dispose or change My Shareholding.

Without limiting the generality of the powers granted hereunder, WFOE shall have the power and authority to, on behalf of myself, execute all
the documents I shall sign as stipulated in the Exclusive Option Agreement entered into by and among me, WFOE and Beijing Yixin on April 20, 2015 and the Equity Pledge Agreement entered into by and among me, WFOE and Beijing Yixin on April
20, 2015 (including any modification, amendment and restatement thereto, collectively the Transaction Documents), and perform the terms of the Transaction Documents.

All the actions associated with My Shareholding conducted by WFOE (or the person designated by WFOE) shall be deemed as my own actions, and
all the documents related to My Shareholding executed by WFOE shall be deemed to be executed by me. I hereby acknowledge and ratify those actions and/or documents by WFOE.

WFOE is entitled to re-authorize or assign its rights related to the aforesaid matters to any other person or entity at its own discretion and
without giving prior notice to me or obtaining my consent. If required by PRC laws, WFOE shall designate a PRC citizen to exercise the aforementioned rights. If required by PRC laws or WFOE, I shall grant to the person designated by the WFOE an
authorization in form and content same as this Power of Attorney. Once the WFOE withdraw its authorization to any person designated by it to exercise the aforementioned rights, I will immediately withdraw the authorization herein after receiving
WFOEs written notice; except for the above, I shall not withdraw any authorization granted to WFOE or any person designated by WFOE.



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During the period that I am a shareholder of Beijing Yixin (whether My Shareholding changed or
not), this Power of Attorney shall be irrevocable and continuously effective and valid from the date of execution of this Power of Attorney.

During the term of this Power of Attorney, I hereby waive all the rights associated with My Shareholding, which have been authorized to WFOE
through this Power of Attorney, and shall not exercise such rights by myself.

This Power of Attorney is written in Chinese and English.
In case there is any conflict between the Chinese version and the English version, the Chinese version shall prevail.



Bin LIBy:

/s/ Bin LiDate: April 20, 2015




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Accepted by



|                                               |  |                     
|---------------------------------------------- |  | --------------------
|Shanghai Techuang Advertising Co., Ltd. (seal)
|                                               | 
|By:                                            |  | /s/ Bin Li          
|Name:                                          |  | Bin Li              
|Title:                                         |  | Legal Representative

Acknowledged by:



|                                                      |  |                     
|----------------------------------------------------- |  | --------------------
|Beijing Yixin Information Technology Co., Ltd. (seal)
|                                                      | 
|By:                                                   |  | /s/ Bin Li          
|Name:                                                 |  | Bin LI              
|Title:                                                |  | Legal Representative



Strictly Confidential



3



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Power of Attorney

Beijing Jiasheng Investment Management Co., Ltd. (the Company), a limited liability company organized and existing under the laws
of the PRC, with its address at Floor 20, Block A, Building 1, No.19 Ronghua Mid Road, Economic Technological Development Area, Beijing, and a holder of 17.7% of the entire registered capital in Beijing Yixin Information Technology Co., Ltd.
(Beijing Yixin) as of the date when the Power of Attorney is executed, hereby irrevocably authorizes Shanghai Techuang Advertising Co., Ltd. (WFOE) to exercise the following rights relating to all equity interests held by the
Company now and in the future in Beijing Yixin (the Companys Shareholding) during the term of this Power of Attorney:

WFOE (or any person designated by WFOE) is hereby authorized to act on behalf of the Company as exclusive agent and attorney with respect to
all matters concerning Companys Shareholding, including without limitation to: 1) attending shareholders meetings of Beijing Yixin; 2) exercising all the shareholders rights and shareholders voting rights the Company is
entitled to under the laws of China and Beijing Yixin of Association, including but not limited to the sale or transfer or pledge or disposition of Companys Shareholding in part or in whole; and 3) designate and appoint on behalf of the
Company the legal representative, the directors, supervisors, the chief executive officer and other senior management members of Beijing Yixin. Without written consent by WFOE, the Company have no right to increase, decrease, transfer, pledge, or by
any other manner to dispose or change Companys Shareholding.

Without limiting the generality of the powers granted hereunder, WFOE
shall have the power and authority to, on behalf of the Company, execute all the documents the Company shall sign as stipulated in the Exclusive Option Agreement entered into by and among me, WFOE and Beijing Yixin on April 20, 2015 and the
Equity Pledge Agreement entered into by and among the Company, WFOE and Beijing Yixin on April 20, 2015 (including any modification, amendment and restatement thereto, collectively the Transaction Documents), and perform the terms
of the Transaction Documents.

All the actions associated with Companys Shareholding conducted by WFOE (or the person designated by
WFOE) shall be deemed as the Companys actions, and all the documents related to Companys Shareholding executed by WFOE shall be deemed to be executed by the Company. The Company hereby acknowledges and ratifies those actions and/or
documents by WFOE.

WFOE is entitled to re-authorize or assign its rights related to the aforesaid matters to any other person or entity
at its own discretion and without giving prior notice to the Company or obtaining the Companys consent. If required by PRC laws, WFOE shall designate a PRC citizen to exercise the aforementioned rights. If required by PRC laws or WFOE, the
Company shall grant to the person designated by the WFOE an authorization in form and content same as this Power of Attorney. Once the WFOE withdraw its authorization to any person designated by it to exercise the aforementioned rights, the Company
will immediately withdraw the authorization herein after receiving WFOEs written notice; except for the above, the Company shall not withdraw any authorization granted to WFOE or any person designated by WFOE.



Strictly Confidential



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During the period that the Company is a shareholder of Beijing Yixin (whether Companys
Shareholding changed or not), this Power of Attorney shall be irrevocable and continuously effective and valid from the date of execution of this Power of Attorney.

During the term of this Power of Attorney, the Company hereby waives all the rights associated with Companys Shareholding, which have
been authorized to WFOE through this Power of Attorney, and shall not exercise such rights by the Company.

This Power of Attorney is
written in Chinese and English. In case there is any conflict between the Chinese version and the English version, the Chinese version shall prevail.



Beijing Jiasheng Investment Management Co., Ltd. (seal)By:

/s/ Qiangdong LiuName:

Qiangdong LIUTitle:

Legal RepresentativeDate:

April 20, 2015




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Accepted by



|                                               |  |                     
|---------------------------------------------- |  | --------------------
|Shanghai Techuang Advertising Co., Ltd. (seal)
|                                               | 
|By:                                            |  | /s/ Bin Li          
|Name:                                          |  | Bin Li              
|Title:                                         |  | Legal Representative

Acknowledged by:



|                                                      |  |                     
|----------------------------------------------------- |  | --------------------
|Beijing Yixin Information Technology Co., Ltd. (seal)
|                                                      | 
|By:                                                   |  | /s/ Bin Li          
|Name:                                                 |  | Bin LI              
|Title:                                                |  | Legal Representative



Strictly Confidential



3



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Power of Attorney

Shenzhen Tencent Industry Investment Fund Co., Ltd. (the Company), a limited liability company organized and existing under the
laws of the PRC, with its address at B815, Wuhan University Shenzhen Chanxueyan Building, No.6 Yuexing Second Road, Nanshan District, Shenzhen, and a holder of 26.6% of the entire registered capital in Beijing Yixin Information Technology Co., Ltd.
(Beijing Yixin) as of the date when the Power of Attorney is executed, hereby irrevocably authorizes Shanghai Techuang Advertising Co., Ltd. (WFOE) to exercise the following rights relating to all equity interests held by the
Company now and in the future in Beijing Yixin (the Companys Shareholding) during the term of this Power of Attorney:

WFOE (or any person designated by WFOE) is hereby authorized to act on behalf of the Company as exclusive agent and attorney with respect to
all matters concerning Companys Shareholding, including without limitation to: 1) attending shareholders meetings of Beijing Yixin; 2) exercising all the shareholders rights and shareholders voting rights the Company is
entitled to under the laws of China and Beijing Yixin of Association, including but not limited to the sale or transfer or pledge or disposition of Companys Shareholding in part or in whole; and 3) designate and appoint on behalf of the
Company the legal representative, the directors, supervisors, the chief executive officer and other senior management members of Beijing Yixin. Without written consent by WFOE, the Company have no right to increase, decrease, transfer, pledge, or by
any other manner to dispose or change Companys Shareholding.

Without limiting the generality of the powers granted hereunder, WFOE
shall have the power and authority to, on behalf of the Company, execute all the documents the Company shall sign as stipulated in the Exclusive Option Agreement entered into by and among me, WFOE and Beijing Yixin on April 20, 2015 and the
Equity Pledge Agreement entered into by and among the Company, WFOE and Beijing Yixin on April 20, 2015 (including any modification, amendment and restatement thereto, collectively the Transaction Documents), and perform the terms
of the Transaction Documents.

All the actions associated with Companys Shareholding conducted by WFOE (or the person designated by
WFOE) shall be deemed as the Companys actions, and all the documents related to Companys Shareholding executed by WFOE shall be deemed to be executed by the Company. The Company hereby acknowledges and ratifies those actions and/or
documents by WFOE.

WFOE is entitled to re-authorize or assign its rights related to the aforesaid matters to any other person or entity
at its own discretion and without giving prior notice to the Company or obtaining the Companys consent. If required by PRC laws, WFOE shall designate a PRC citizen to exercise the aforementioned rights. If required by PRC laws or WFOE, the
Company shall grant to the person designated by the WFOE an authorization in form and content same as this Power of Attorney. Once the WFOE withdraw its authorization to any person designated by it to exercise the aforementioned rights, the Company
will immediately withdraw the authorization herein after receiving WFOEs written notice; except for the above, the Company shall not withdraw any authorization granted to WFOE or any person designated by WFOE.



Strictly Confidential



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During the period that the Company is a shareholder of Beijing Yixin (whether Companys
Shareholding changed or not), this Power of Attorney shall be irrevocable and continuously effective and valid from the date of execution of this Power of Attorney.

During the term of this Power of Attorney, the Company hereby waives all the rights associated with Companys Shareholding, which have
been authorized to WFOE through this Power of Attorney, and shall not exercise such rights by the Company.

This Power of Attorney is
written in Chinese and English. In case there is any conflict between the Chinese version and the English version, the Chinese version shall prevail.



Shenzhen Tencent Industry Investment Fund Co., Ltd. (seal)By:

/s/ Yuxin RenName:

Yuxin RENTitle:

Legal RepresentativeDate:

April 20, 2015




Strictly Confidential



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Accepted by



|                                               |  |                     
|---------------------------------------------- |  | --------------------
|Shanghai Techuang Advertising Co., Ltd. (seal)
|                                               | 
|By:                                            |  | /s/ Bin Li          
|Name:                                          |  | Bin Li              
|Title:                                         |  | Legal Representative

Acknowledged by:



|                                                      |  |                     
|----------------------------------------------------- |  | --------------------
|Beijing Yixin Information Technology Co., Ltd. (seal)
|                                                      | 
|By:                                                   |  | /s/ Bin Li          
|Name:                                                 |  | Bin LI              
|Title:                                                |  | Legal Representative



Strictly Confidential



3